#language en
== SpamAssassin Rule: FH_HELO_AMOST_IP ==

''Standard description:'' Helo is almost an IP addr.

=== Explanation ===

An untrusted relay used a hostname (FQDN) as a HELO argument during a SMTP transaction that contains a series of numbers that might represent an IPv4 address.

One likely reason for this is that the hostname is taken from the reverse DNS entry used to indicate a dynamically allocated address (see also [[Rules/HELO_DYNAMIC_DHCP]]).

=== Further Info ===

The default scores for this rule can be found [[http://spamassassin.apache.org/tests.html|in the online list of tests]].

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